<!doctype html>
<html>
<head>
  <title>Introducint jQuery UI</title>
  <meta charset="utf-8" />
  <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
  <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.11.1/jquery-ui.min.js"></script>
  <style>
    #square {
      width:200px;
      height:200px;
      background-color:grey;
    }
  </style>
</head>

<body>
  <div id="square"></div>
  <script type="text/javascript">
    $("#square").draggable();
  </script>
</body>
</html>
